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10 package chapter6;
11
12 import org.slf4j.Logger;
13 import org.slf4j.LoggerFactory;
14 import org.slf4j.MDC;
15 import org.slf4j.Marker;
16 import org.slf4j.MarkerFactory;
17
18 import ch.qos.logback.classic.LoggerContext;
19 import ch.qos.logback.classic.joran.JoranConfigurator;
20 import ch.qos.logback.core.joran.spi.JoranException;
21
22 public class FilterEvents {
23
24 public static void main(String[] args) throws InterruptedException {
25 if (args.length == 0) {
26 System.out.println("A configuration file must be passed as a parameter.");
27 return;
28 }
29
30 Logger logger = (Logger) LoggerFactory.getLogger(FilterEvents.class);
31 LoggerContext lc = (LoggerContext) LoggerFactory.getILoggerFactory();
32
33 try {
34 JoranConfigurator configurator = new JoranConfigurator();
35 configurator.setContext(lc);
36 lc.reset();
37 configurator.doConfigure(args[0]);
38 } catch (JoranException je) {
39 je.printStackTrace();
40 }
41
42 for (int i = 0; i < 10; i++) {
43 if (i == 3) {
44 MDC.put("username", "sebastien");
45 logger.debug("logging statement {}", i);
46 MDC.remove("username");
47 } else if (i == 6) {
48 Marker billing = MarkerFactory.getMarker("billing");
49 logger.error(billing, "billing statement {}", i);
50 } else {
51 logger.info("logging statement {}", i);
52 }
53 }
54 }
55 }